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package com.cardarus.operatingsystem.struts.actions;

import com.cardarus.operatingsystem.domain.Certificate;
import com.cardarus.operatingsystem.domain.SalesTransaction;
import com.cardarus.operatingsystem.domain.SystemUser;
import com.cardarus.operatingsystem.model.BusinessModel;
import com.cardarus.operatingsystem.struts.forms.UseCertificateActionForm;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;

/**
 *
 * @author nobal
 */
public class UseCertificate extends org.apache.struts.action.Action {
    
    /* forward name="success" path="" */
    private static final String SUCCESS = "success";
    
    /**
     * This is the action called from the Struts framework.
     * @param mapping The ActionMapping used to select this instance.
     * @param form The optional ActionForm bean for this request.
     * @param request The HTTP Request we are processing.
     * @param response The HTTP Response we are processing.
     * @throws java.lang.Exception
     * @return
     */
    @Override
    public ActionForward execute(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        ActionErrors errors = new ActionErrors();
        UseCertificateActionForm certForm = (UseCertificateActionForm) form;
        HttpSession session = request.getSession();
        SystemUser user = (SystemUser) session.getAttribute("user");

        BusinessModel model = BusinessModel.getInstance();
        Certificate cert=model.getCertificate(certForm.getCertId());
        SalesTransaction sale = (SalesTransaction) session.getAttribute("sale");
        boolean isValidCertToThisUser=model.validateCertificate(cert, sale.getCustomer(),sale.getSubTotal() );

        if(isValidCertToThisUser){
           sale.setCertificates(cert);
           //subtract the value of certificate from subtotal
           model.calculateTotal(sale);
        }else{
            sale.setCertificates(null);
            model.calculateTotal(sale);
            errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage("errors.payment.invalidCertificate"));
            addErrors(request, errors);
            return mapping.findForward(SUCCESS);
        }
        return mapping.findForward(SUCCESS);
    }
}
